The Exhibit 23.10 and the description in the Annex details exactly what I was 
hoping to use to make sure this method is acceptable.  I have used this many 
times, but just needed to find the section for this one.  Thanks to all the 
forum for the assistance.

Travis Mack, CFPS, CWBSP, RME-G, COC, SET
Engineering Manager
MFP Design
3356 E Vallejo Ct
Gilbert, AZ 85298
480-505-9271 ext. 700 C: 480-272-2471
[email protected]<mailto:[email protected]>
www.mfpdesign.com<http://www.mfpdesign.com>

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From: Hinson, Ryan <[email protected]>
Sent: Monday, April 19, 2021 11:42 AM
To: [email protected]
Cc: Travis Mack <[email protected]>
Subject: RE: Same size orifice in a room

Same orifice, no. Limits on orifice, yes...in several places such as NFPA 13 
(2019) Sections 9.4.4, Chapter 21, Chapter 25, Section 27.2.4.9.2, or word 
search 'factor'. Same response time per compartment, yes per Section 
9.4.3.2<http://9.4.3.2>.

Ryan L. Hinson, PE*, SET**  \  Burns & McDonnell
Senior Fire Protection Engineer
O 612-900-3755 \ M 763-688-4045 \  F 952-229-2923
[email protected]<mailto:[email protected]>  \  burnsmcd.com
8201 Norman Center Drive, Suite 500  \  Minneapolis-St. Paul, MN 55437
*Registered in: LA, MD, MN, PA, TX, & UT
**NICET IV - Water-Based Systems Layout



-----Original Message-----
From: Sprinklerforum 
<[email protected]<mailto:[email protected]>>
 On Behalf Of Travis Mack via Sprinklerforum
Sent: Monday, April 19, 2021 1:24 PM
To: 
[email protected]<mailto:[email protected]>
Cc: [email protected]<mailto:[email protected]>
Subject: Same size orifice in a room

I'm trying to locate the section in the standard about all sprinklers in a 
compartment to be same orifice. Can anyone help point me in that direction? My 
searching is not too productive today.

Travis Mack, CFPS, CWBSP, RME-G, COC, SET Engineering Manager MFP Design
3356 E Vallejo Ct
Gilbert, AZ 85298
480-505-9271 ext. 700 C: 480-272-2471
[email protected]<mailto:[email protected]<mailto:[email protected]%3cmailto:[email protected]>>
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